It is of great importance to investigate the extraction of polycyclic aromatic hydrocarbons (PAHs) in plant root apoplast solution for elucidating the mechanisms underlying root absorption and translocation of PAHs and their control. However, little information is available on the extraction of plant root apoplast solution to date. In this study, wheat was employed and phenanthrene was used as the representative of PAHs. Phenanthrene extracted from wheat root apoplast solution increased with increasing vaccum degree, vacuum time, centrifugal speed and centrifugal time. Glucose- 6-phosphate dehydrogenase (G6PGH) activity in wheat root apoplast solution was enhanced with increasing vacuum degree, vacuum time, centrifugal speed and centrifugal time. For the vacuum infiltration centrifugation extraction, the optimal vacuum degree was 70 kPa, the optimal vacuum time was 10 min, the optimal centrifugal speed was 3 068 r x min(-1), and the optimal centrifugal time was 15 min. Our results provide a more convenient and effective method for investigation on pollutant transport in plant root apoplast.
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Plant Physiol
January 2025
Institute of Biology, University of Graz, Graz, Austria.
Understanding the molecular mechanisms of abiotic stress responses in plants is instrumental for the development of climate-resilient crops. Key factors in abiotic stress responses, such as the proton- pumping pyrophosphatase (AVP1), have been identified, but their function and regulation remain elusive. Here, we explored the post-translational regulation of AVP1 by the ubiquitin-conjugating enzyme UBC34 and its relevance in the salt stress and phosphate starvation responses of Arabidopsis (Arabidopsis thaliana).
View Article and Find Full Text PDFQuant Plant Biol
December 2024
Quantitative Biology Center (QBiC), University of Tübingen, Tübingen, Germany.
Hormonal mechanisms associated with cell elongation play a vital role in the development and growth of plants. Here, we report Nextflow-root (nf-root), a novel best-practice pipeline for deep-learning-based analysis of fluorescence microscopy images of plant root tissue from A. thaliana.
View Article and Find Full Text PDFAnnu Rev Plant Biol
January 2025
1Department of Plant Biology and Genome Center, University of California, Davis, California, USA;
Plant cells are defined by their walls, which, in addition to providing structural support and shape, are an integral component of the nonliving extracellular space called the apoplast. Cell wall thickenings are present in many different root cell types. They come in a variety of simple and more complex structures with varying composition of lignin and suberin and can change in response to environmental stressors.
View Article and Find Full Text PDFPlant Physiol Biochem
December 2024
College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China. Electronic address:
Moderate mowing of the shoot is an effective strategy for improving Pb-contaminated soil remediation using bermudagrass. However, the mechanisms by which mowing facilitates Pb uptake and accumulation remain insufficiently understood. Root radial transport is critical in efficient heavy metal uptake and translocation in plants and is influenced by root physiological-biochemical characteristics.
View Article and Find Full Text PDFFront Plant Sci
December 2024
Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States.
Understanding the early interactions between plants and endophytes will contribute to a more systematic approach to enhancing endophyte-mediated effects on plant growth and environmental stress resistance. This study examined very early growth and ascorbate metabolism after seed treatment of with three different endophytes. The three endophytes used were pb1(Bapb1), (Ml) and SLB4 (SLB4).
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